NAME
modf, modff,
modfl —
extract signed integral and fractional
values from floating-point number
LIBRARY
library “libm”
SYNOPSIS
#include
<math.h>
double
modf(double
value, double
*iptr);
float
modff(float
value, float
*iptr);
long double
modfl(long
double value, long double
*iptr);
DESCRIPTION
Themodf()
function breaks the argument value into integral and
fractional parts, each of which has the same sign as the argument. It stores
the integral part as a
double
in the object pointed to by iptr.
RETURN VALUES
The modf() function returns the signed
fractional part of value.
SEE ALSO
STANDARDS
The modf() function conforms to
ANSI X3.159-1989
(“ANSI C89”).